Verified answer

KOA campgrounds are well structured with all kinds of activities but most of these are catered to the RV crowd. National forests have the same but generally activities are run only during the summer months. Same with state and county parks. Nearly all require reservations 6 months in advance.

Get them here,

http://www.reserveamerica.com/

or here,

http://www.recreation.gov/

Camping Los Angeles has a plenty of camping sites. Balboarvparks are nearer and always the best opportunity for camping around Los Angeles. They offers amenities like washrooms, laundry, Internet, showers and full hook ups.